Vacuum attachment for hair-cutting shears



Mar. 3, 1925.

I 1,528,439 J. JosTEN ET AL ,l

VACUUM ATTACHMENTKFOR HAIR/CUTTING .SHEARS x Filed Dec. 21 .1923 f vJMEs Joan-.N

EMMlrT R065 f" provide a vacuum Patented Mar.. 3, '1925.

STATES JAMES JOSTEN AND ENLMETT ROSS, F ATHENS, 01H10.

VACUUM ATTACHMENT FOR HAIR-CUTTING SEEARS.

Application led December 21, 1923. Serial No. 681,941.

T0 all whom t may concern Be it known that we, JAMES Jos'rnN andlrurn'rr Ross, citizens of the United States of America, residing atAthens, county of Athens, State of Ohio, have invented new and usefulimprovements in Vacuum Attachments for Hair-Cutting `Shears, of whichthe following is a specification.

Our invention relates to a vacuum -hair removing and collectingattachment for power operated hair clipping shears. n

The principal object of the invention 1s to attachment of thischaracter, which may be removably connected to the type of clippingmachines used 1n barber shops, and which is applicable for collectingand. removing the cut hair directly from the cutting edge of the shears.The invention is illustrated in the accom panying drawings iny which,Figure .1 i s a plan view partly in section of a cllpping machineshowing our improved vacuum attachment applied thereto; Figure 2 is asubstantially longitudinal sectional view of the attachment, taken onure 1; and Figure 3 is a perspective view of the vacuum attachmentdisconnected from the clippers.

Referring to the drawin s, and particularly to the type of power cipping machine to which the invention is attached, 10 de` notes a flatgrip portion having its forward end slightly widened and provided withan inclined toe portion 11 to receive a serrated plate 12 and areciprocating serrated knife 13, the latter being operated by a pitmanconnection 14 with a crank 15, which receives its rotary motion from oneend of a flexible power shaft 16. The operating mechanism comprising thepitman 14,

crank 1,5 and end of shaft 16, is housedy inv a chamber 17 in the gripportion 10, as

illustrated in Figure 2, and the shaft 16 enters the chamber 17 throughAa tubular stem 18 having a web connection 19 with the adjacent end wallof the portion 10, the web being provided withan opening 2O to receive ahook for hanging purposes.

Generally, the pitman 14 is a pivoted member mounted to oscillate abouta pin or stud 21, which projects upwardly from the bottom of the chamber17 closely adjacent the inclined end thereof. The upper end of the stud21 is threaded to receive a nut which is adjustable against a knifelines 2-2 of Figplate to hold the knife 13 in sliding engagement withthe under serrated plate 12.

According to the present invention the knife plate is removed and thevacuum attachment substituted therefor. The attachment'comprises a boxlike frame 22 containing a vacuum chamber 23 and shaped to conform withthe 'lateral dimensions of the grip portion l10 of the clippers, so asto afford a better gripping surface for the operator. `The vacuumchamber 23 extends along the edge of the frame 22 overlying the shaft16' in the portion 10, and is formed by an upright partition 24, which,as it approaches the cutting edgeof the shears, curves towards theoplposite side of the frame where it joins t e side wall thereof at apoint just short of the forward end. In order to conform to the upwardlyinclined position of the cutting edge the top wall 25 and side walls 26of the'frame 22 are also offset to a position parallel with the knife13. ln this manner the open end of the vacuum chamber 23 is arrangedover the cutting edge at a point corresponding to the plane of the backwall of the serrations 1n l the plate 12 and knife 13, the open end ofthe chamber 23, hereinafter, being referred to as the mouth- 27. Atubular connection 28 is made with the ,rearward extension of the vacuumchamber 23, the connection being adapted to form a sufficient vacuum inthe chamber to d-raw the cut hair from the path of the clipper into themouth 27.

The bottom wall 29 of the frame 22 stops short of the upwardly inclinedortion leading to the mouth 27, and a kni e holding plate 30, shownparticularly in Fig- 4ure 2, 1s superimposed over the bottom wall sothat a downwardly inclined flange 31 of the plate is brought to bearagainst the knife 13. The complete atachment, as previously stated, isremovably attached Ato the clippers through its connection with the stud21, which is received in abore 32 formed by aligned openings in thebottom and top walls of the frame 22 and a tubular collar 33 disposedbetween the two walls.

In the operation of the device, the frame 22 is placed upon the clippersso that the stud 21 projects'throughthe bore 32 to re ceive a nut 34which is adjustable against the frame 22 to cause the latter and theflange 31 of the knife plate 30 to bear lightly against the knife 13.When adi justed position themount 27 should be disposed just back of theseri-ations of the nife so as to bring the full drawing action from thevacuum chamber 23 directly in the path of the eut hair from the shears.The entire instrument may be readily grasped about the gri portion 10and frame 22 and operated in tie usual manner with the exception that itwill not be necessary to c'omb the cut hair from the trimmed hair norwill any of the cut hair fall to the floor and require collecting, asexperienced in present day methods.

No apparatus has been either illustrated or described for causingformation of a vacuum in the vacuum chamber 23, but it will beunderstood that any of the Well known systems may be employed for thispurpose.,

What we claim and desire to secure by Letters Patent is wardly beyondthe sides of said grip portion; Aserrated knife plate fixed to saidinclined edge, a reci rocating serrated knife movable over sai plate, astudy carried by the grip portion projecting there-A frame beingsuper-posed on said grip portion and being provided with a vacuumchamber having its walls flared outwardly to include the projectedportion of the inclined edge of the grip portion, the flared portion ofthe vacuum chamber terminating in a mouth piece disposed over and inadvance of the cutting edge of said knife, the upper wall of said mouthpiece being inclined and the lower edge thereof comprising a plate.having an opening aligned with the said openings in the frame, a sleeveembracing said stud and disposed between the said latter plate and theopposite upper wall of the frame, and means adjustable over said studand against said upper wall for holding the attachments and the clippershears together.

In testimony whereof we have affixed our signatures.

JAMES JOSTEN. EMMETT ROSS.

